Question

X + 3,5 = 4,72+2,28

Answer 1

=>x+3,5=7

=>x=3,5

Answer 2

Answer 3

\(x+3,5=4,72+2,28\\ \Rightarrow x=3,5=7\\ \Rightarrow x=7-3,5\\\Rightarrow x=3,5\)